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Hirata; Yoshimi
Yokohama, JP
No. of patents:

Patent Number Title Of Patent Date Issued
4986832 Artificial blood vessel and process for preparing it January 22, 1991
Disclosed is an artificial blood comprising a vessel wall that is comprised of plural layers and is porous as a whole, wherein an innermost layer has open-cell structure in which pores are connected through each other, and has a thickness of not less than 5 .mu.m or more and not more tha
4957508 Medical tubes September 18, 1990
A medical tube characterized in that it dilates at its cut ends toward the external surface when it is cut at any random portion transversely relative to its longitudinal direction.The patency of the sutured portion may be maintained in good condition over a long time, since pannus forma

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